TIPD175 Reference Design

Texas Instruments

±1A Single-Supply Low-Side Current Sensing Solution Reference Design

Description

This single-supply low-side: bi-directional current sensing solution can accurately detect load currents from -1 A to 1 A. The linear range of the output is from 110 mV to 3.19 V. The design utilizes the OPA2313 configured as a difference amplifier and reference voltage buffer.

Features
  • ±1A Low-side Current Sensing Solution Less than 1% total unadjusted error Supply: 3.3V Output: 110mV to 3.19V This robust circuit reference design includes theory: complete error analysis: component selection: simulation: PCB design: and measured data that correlates with the theory and simulation
Applications
  • Desktop PC/motherboard
  • Washer & dryer
  • Refrigerator & freezer
  • Dishwasher
  • Oven
  • Air conditioner outdoor unit
  • Cooker hood
  • Lawn mower
  • Air conditioner indoor unit
  • Cooking top
  • Air purifier & humidifier
  • Chromebook & WOA
  • Residential & living fan
  • Residential water heater
  • Standard notebook PC
  • Heat pump
Product Categories
  • Amplifiers

Parts

Part Number Name Companion Part
OPA2313 OPA2313 Buy Datasheet

Software

Bill Of Materials

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Schematic

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Design File

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Test Data

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Other Documents

Title Updated Type Size (KB)
TIPD175 BOM 31 Jul 2015 PDF 70
TIPD175 Schematic 31 Jul 2015 PDF 103